53391368 has 16 divisors (see below), whose sum is σ = 105378000. Its totient is φ = 25290576.

The previous prime is 53391347. The next prime is 53391383. The reversal of 53391368 is 86319335.

It is a super-2 number, since 2×53391368² = 5701276353822848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175478 + ... + 175781.

It is an arithmetic number, because the mean of its divisors is an integer number (6586125).

Almost surely, 2^53391368 is an apocalyptic number.

It is an amenable number.

53391368 is a deficient number, since it is larger than the sum of its proper divisors (51986632).

53391368 is a wasteful number, since it uses less digits than its factorization.

53391368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351284 (or 351280 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 53391368 is about 7306.9397150928. The cubic root of 53391368 is about 376.5508938406.

The spelling of 53391368 in words is "fifty-three million, three hundred ninety-one thousand, three hundred sixty-eight".